Simplest radical form

Follow the steps to write the radical in simplest radical form.[br]Press "New Problem" to load the next problem. How many of those exact problems are in the questions below is random (except the first one!).[br]Use the math text tool to enter the radical.
√8=
√48=
√162=
√12=
√147=
√18=
√72=
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Information: Simplest radical form